ICD-10-CM M13: Other arthritis

ICD-10-CM Diagnosis Code (2025)

Official Description for M13

Other arthritis

Coding Notes & Guidelines for M13

Excludes1: Not Coded Here
  • arthrosis (M15-M19)
  • osteoarthritis (M15-M19)
Excludes1: Not Coded Here

osteoarthritis (M15-M19)

Inclusion Terms

Allergic arthritis

Child Codes (More Specific Codes for M13):

M13.0 - Polyarthritis, unspecified M13.1 - Monoarthritis, not elsewhere classified M13.10 - Monoarthritis, not elsewhere classified, unspecified site M13.11 - Monoarthritis, not elsewhere classified, shoulder M13.111 - Monoarthritis, not elsewhere classified, right shoulder M13.112 - Monoarthritis, not elsewhere classified, left shoulder M13.119 - Monoarthritis, not elsewhere classified, unspecified shoulder M13.12 - Monoarthritis, not elsewhere classified, elbow M13.121 - Monoarthritis, not elsewhere classified, right elbow M13.122 - Monoarthritis, not elsewhere classified, left elbow M13.129 - Monoarthritis, not elsewhere classified, unspecified elbow M13.13 - Monoarthritis, not elsewhere classified, wrist M13.131 - Monoarthritis, not elsewhere classified, right wrist M13.132 - Monoarthritis, not elsewhere classified, left wrist M13.139 - Monoarthritis, not elsewhere classified, unspecified wrist M13.14 - Monoarthritis, not elsewhere classified, hand M13.141 - Monoarthritis, not elsewhere classified, right hand M13.142 - Monoarthritis, not elsewhere classified, left hand M13.149 - Monoarthritis, not elsewhere classified, unspecified hand M13.15 - Monoarthritis, not elsewhere classified, hip M13.151 - Monoarthritis, not elsewhere classified, right hip M13.152 - Monoarthritis, not elsewhere classified, left hip M13.159 - Monoarthritis, not elsewhere classified, unspecified hip M13.16 - Monoarthritis, not elsewhere classified, knee M13.161 - Monoarthritis, not elsewhere classified, right knee M13.162 - Monoarthritis, not elsewhere classified, left knee M13.169 - Monoarthritis, not elsewhere classified, unspecified knee M13.17 - Monoarthritis, not elsewhere classified, ankle and foot M13.171 - Monoarthritis, not elsewhere classified, right ankle and foot M13.172 - Monoarthritis, not elsewhere classified, left ankle and foot M13.179 - Monoarthritis, not elsewhere classified, unspecified ankle and foot M13.8 - Other specified arthritis M13.80 - Other specified arthritis, unspecified site M13.81 - Other specified arthritis, shoulder M13.811 - Other specified arthritis, right shoulder M13.812 - Other specified arthritis, left shoulder M13.819 - Other specified arthritis, unspecified shoulder M13.82 - Other specified arthritis, elbow M13.821 - Other specified arthritis, right elbow M13.822 - Other specified arthritis, left elbow M13.829 - Other specified arthritis, unspecified elbow M13.83 - Other specified arthritis, wrist M13.831 - Other specified arthritis, right wrist M13.832 - Other specified arthritis, left wrist M13.839 - Other specified arthritis, unspecified wrist M13.84 - Other specified arthritis, hand M13.841 - Other specified arthritis, right hand M13.842 - Other specified arthritis, left hand M13.849 - Other specified arthritis, unspecified hand M13.85 - Other specified arthritis, hip M13.851 - Other specified arthritis, right hip M13.852 - Other specified arthritis, left hip M13.859 - Other specified arthritis, unspecified hip M13.86 - Other specified arthritis, knee M13.861 - Other specified arthritis, right knee M13.862 - Other specified arthritis, left knee M13.869 - Other specified arthritis, unspecified knee M13.87 - Other specified arthritis, ankle and foot M13.871 - Other specified arthritis, right ankle and foot M13.872 - Other specified arthritis, left ankle and foot M13.879 - Other specified arthritis, unspecified ankle and foot M13.88 - Other specified arthritis, other site M13.89 - Other specified arthritis, multiple sites

About ICD-10-CM Code M13 (Other arthritis)

ICD-10-CM code M13 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M13 became effective on October 1, 2024.

This page provides detailed information about M13 - Other arthritis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other arthritis.